<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title th:text="${hello}">hello</title>
</head>
<body style="margin:0;padding:0;width:100%;height:100%;position: absolute;">
	<img th:src="'data:image/jpeg;base64,'+${his.base64}" alt="截图预览"  style="margin:0;padding:0;width:100%;height:100%;position: absolute;">
</body>
</html>